Question about 1999 Pontiac Grand Am GT

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1.6 Automatic Jumps When Accelerating From Rest - GB Oil Prob?

Over the past few weeks the car has been 'jumping' when accelerating from a rest position e.g. when stopping at a junction or at traffic lights the acclerating but drives fine once a constant speed is maintained. The map sensor and vac pipes have been checked and cleaned. I've been told the gearbox oil needs replacing? Will that solve the problem?
My grand am accelerates poorly from a stop and jumps at about 20 mph and to a less degree at 40mph. This is worse when car is cold and gets better when diven for a while. The car also shakes around 60-70 mph, not sure if this is related or not. I did rotate and balance, but no difference.

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  • pglayden3 Apr 03, 2009

    2001 Pontiac Grand Am - Jumps/kicks into gear at low speeds, fine at higher speeds.... Also the car continuously stalls at low (less than 10 mph) speeds.



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Your transmission is gone... i had the same problem.. be carfull you may loose first gear.... check your fluid level.. that might cause it... to do that you have to worm up the tranny then there is a square head bolt on bottom side off passenger side... leave car running. pull the bolt and keep an oil pan underneath... that happened to me. i left it for to long and ended up blowing the tranny. i got a rebuild and i was told i had too much fluid. i hope that helps..

Posted on Nov 27, 2008


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